The user can modify the geometry information using the Ellipsoid Geometry property page.

Figure 1 Ellipsoid property page
•Radius(X): Defines a radius of the x axis with respect to the geometry reference frame of the ellipsoid.
•Radius(Y): Defines a radius of the y axis with respect to the geometry reference frame of the ellipsoid.
•Radius(Z): Defines a radius of the z axis with respect to the geometry reference frame of the ellipsoid.
•Use Like Sphere: If the user checks this option, the same value is used to the radius for x, y, and z axes.

Figure 2 Dimensions